Perhaps you should try some spelling variations:
"coder coding and persistent problem" » "coder coding and persistente problema" (Expand search), "coder coding and persistence problem" (Expand search), "coder coding and persisting problem" (Expand search), "coder coding of persistent problem" (Expand search), "coder coding _ persistent problem" (Expand search), "modern coding and persistent problem" (Expand search), "color coding and persistent problem" (Expand search), "odor coding and persistent problem" (Expand search), "coder coding rna persistent problem" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa python python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coding and persistent problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding and persistent problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding and persistent problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding and persistent problem") OR ("api python python python programming"))*.